High-Performance Networking Services
Expert DPDK & VPP Consulting for
Packet Processing at Scale
We build and optimize DPDK and VPP solutions that handle 100Gbps+ line-rate traffic. A team of experts with 40+ years of combined hands-on experience in telecom, cloud, and cybersecurity.
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High-Performance Networking Services
End-to-end DPDK, VPP, and packet processing expertise — from architecture to production
DPDK Development
Custom high-performance packet processing applications built on the Data Plane Development Kit (DPDK) framework. Production-ready solutions with poll-mode drivers for Intel, Mellanox, and Napatech NICs, ring buffers, and zero-copy packet paths for wire-speed performance.
VPP Plugin Development
Custom FD.io Vector Packet Processor (VPP) plugin development for routing, security, and virtual network functions. We design graph node pipelines, multi-worker scaling architectures, and TAP-based container integration.
IPsec & IKEv2 Engineering
Scalable IPsec solutions with Intel QAT hardware crypto offload, tunnel and transport mode configurations, IKEv2 key exchange at scale, and Linux XFRM framework integration for hybrid deployments.
Network Performance Optimization
NUMA-aware architecture design, cache-line optimization, CPU pinning, hugepage tuning, and profiling for sub-microsecond latency. We achieve zero-packet-loss at sustained 100Gbps+ throughput.
BPF/XDP Development
Custom BPF and XDP programs for line-rate packet processing in the Linux kernel - flow classification, header rewriting, traffic filtering, and AF_XDP with Intel/Mellanox NICs for hybrid kernel/userspace datapaths.
Deep Technical Expertise
Comprehensive knowledge across the entire high-performance networking stack
Vector Packet Processing (VPP)
Full-stack FD.io VPP development including custom plugins, graph node pipelines, TAP-based scaling, and multi-worker architectures for telecom and cloud.
DPDK & Hugepage Memory
Advanced DPDK memory management, poll-mode drivers, ring buffers, zero-copy packet paths, and hugepage allocation for maximum throughput at 100Gbps+.
IPsec, IKEv2 & Crypto Offload
Hardware-accelerated IPsec with crypto offload, tunnel and transport mode, IKEv2 key exchange, and Linux XFRM framework integration at carrier scale.
System & Network Tuning
CPU pinning, NUMA topology optimization, cache-line alignment, kernel bypass, and zero-packet-loss tuning for sub-microsecond latency networking.
BPF/XDP & AF_XDP
Custom XDP programs for line-rate packet processing, BPF map management, AF_XDP for kernel-bypass socket I/O, TC-BPF for traffic shaping, and hybrid kernel/userspace datapath design.
Linux Kernel Networking
Deep Linux networking expertise including netfilter, traffic control (tc), XFRM framework, and hybrid kernel/userspace packet processing architectures.
Cloud-Native & Containers
Containerized packet processing workloads, cloud-native virtual network functions (VNFs), and scalable network function architectures for modern infrastructure.
SONiC & White-Box Switching
Production SONiC deployment on white-box switches with SAI ACL programming, ERSPAN mirroring, and ASIC portability across Broadcom, Marvell, and Intel platforms.
SmartNIC & Hardware Accelerators
Napatech NTPL programming, hardware timestamping, DPDK on ARM (Cavium ThunderX), and switching ASIC HAL integration for hardware-accelerated packet processing.
Use Cases
Specific technical problems we have solved — with concrete performance numbers
Hyperscan Application Detection for 5G UPF
Two-stage IP + L7 regex matching with Hyperscan in a VPP-based 5G UPF - HTTP Host and TLS SNI extraction with versioned zero-downtime rule updates.
VoLTE Packet Capture & Kafka Streaming
DPDK capture pipeline with per-subscriber Kafka topic routing - ~295 MB/sec sustained throughput, rte_hash IP filtering, zero packet loss.
Inline Traffic Analytics for Cellular Networks
Dual-port bidirectional flow tracking with cycle-accurate TCP RTT measurement and per-subscriber aggregation on cellular backhaul links.
BPF/XDP Flow Offloading for DPDK AF_XDP
Hybrid XDP/DPDK datapath - line-rate kernel forwarding for known flows, full DPDK userspace for new flows, 524K flow table with lazy offloading.
SONiC-Based Network Packet Broker
Production SONiC NPB on white-box switches - SAI ACL filtering, ERSPAN mirroring, up to 12.8 Tbps at 5-15x lower cost than proprietary appliances.
DPDK Packet Broker for Embedded ARM Platform
Cross-platform DPDK data plane for an 8-port ARM packet broker - Cavium ThunderX, Marvell ASIC, Redis management, identical code on ARM and x86.
DPDK Packet Capture Library with Java/JNI Bindings
DPDK shared library with JNI bindings for Java applications - hardware timestamping, connection tracking, PCAP export, jumbo frames up to 9,700 bytes.
VPP IKEv2/IPsec Hardening for SD-WAN
Production IKEv2/IPsec hardening for SD-WAN scale - PFS, staggered rekeying, stuck session cleanup, SA monitoring, all upstreamed to fd.io VPP.
VPP IPsec/XFRM Integration and PPPoE Automation
100 commits spanning IPsec/XFRM linux-cp integration (AEAD AES-GCM, SA counter sync, prelookup) and automated PPPoE session management.
DPDK Cell Network Emulator for Traffic Engineering
Cellular network emulator with CQI-aware 1ms scheduling - 1,000 cells, 40,000+ active users, NSH header parsing, per-UE ring buffering.
PPPoE XDR Analytics with Napatech Hardware Offload
XDR generation at 30-100Gbps with Napatech NTPL hardware offload - PPPoE protocol classification in FPGA, L7 parsing, multi-format Kafka export.
Solution Briefs
Deep technical guides for specific high-performance networking challenges
DPI & Traffic Classification
Line-rate L7 classification at 40–100Gbps using DPDK zero-copy RX, lock-free flow tables, and Hyperscan multi-pattern matching on commodity hardware.
Packet Capture & Brokering
Lossless 100Gbps packet capture with nanosecond-precision timestamps, DPDK-based filtering, deduplication, and high-speed NVMe disk writing.
Software Routers & Firewalls
100Gbps software-defined network appliances with VPP — IPv4/IPv6 routing, ACL filtering, NAT, IPsec, and QoS in a single graph-based forwarding plane.
ISP Data Plane Optimization
Replace proprietary CGNAT, DDoS, and QoS appliances with VPP on commodity x86 — consolidating a $400K+ appliance stack onto a $15K server.
SD-WAN & SASE Encryption
IPsec at 100Gbps with VPP and Intel QAT crypto offload — 10,000+ tunnels, IKEv2 at scale, and kernel XFRM coexistence for migration.
DDoS Mitigation & Scrubbing
Inline DDoS scrubbing at 100Gbps on commodity hardware — VPP ACL-based filtering with detection engine integration and sub-100ms rule deployment.
RTP Voice Transcription
Carrier-scale RTP capture, codec transcoding with FFmpeg, and real-time speech-to-text with whisper.cpp — zero-loss voice processing at 40Gbps.
Traffic Generation & Testing
100Gbps DPDK-based traffic generators with stateful TCP/HTTP, multi-flow generation, and nanosecond-precision latency measurement — at 1/10th the cost of commercial tools.
Software Load Balancers
L4/L7 load balancing at hardware speed with VPP — 100Gbps+ DSR forwarding, 10M+ concurrent connections, and TLS offload with QAT.
Network Detection (IDS/IPS)
Zero-drop packet inspection at 40Gbps+ — DPDK-accelerated Suricata, hybrid XDP/DPDK offloading, and hardware-timestamped capture.
Flow Analytics & Observability
Full-fidelity DPDK probes for real-time flow analytics at 100Gbps — replacing sampled NetFlow with 100% packet visibility and sub-second detection.
Inline Deep Packet Inspection
Wire-speed DPI with VPP and Hyperscan — multi-stage classification from L3/L4 ACLs to 50K+ pattern matching, inline at 40–100Gbps.
CDN & Edge Computing
DPDK kernel bypass for CDN PoP performance — 60+ Mpps packet processing, zero-copy QUIC receive, and inline DDoS filtering at 100Gbps.
Cloud-Native Networking
VPP as a per-node data plane for Kubernetes — 95Gbps pod-to-pod throughput, 5,000+ TAP/LCP interfaces, and 15μs p99 latency.
HFT & Low-Latency Trading
Deterministic sub-microsecond packet processing with DPDK kernel bypass — NIC tuning, NUMA isolation, and cache optimization for trading infrastructure.
VoIP & Real-Time Media
DPDK-accelerated RTP forwarding at carrier scale — 500K+ concurrent calls, sub-microsecond latency, and wire-speed VoIP DDoS protection.
AI Cloud Networking
VPP virtual switching for multi-tenant GPU clouds — VXLAN tenant isolation at 60+ Gbps, per-VRF forwarding, and security group enforcement.
Gaming Infrastructure
Sub-microsecond DPDK forwarding for gaming PoPs — deterministic latency, zero jitter, and inline DDoS filtering at 40+ Mpps.
Game Server DDoS Protection
VPP-based L7 filtering at wire speed — protocol-aware validation, challenge-response authentication, and 100Gbps+ scrubbing for game hosting.
IoT & Edge Networking
DPDK-powered edge gateways for 200K+ device connections — protocol translation, TLS termination at scale, and sub-millisecond local response.
Frequently Asked Questions
Common questions about our high-performance networking services
What is DPDK and why does it matter for high-performance networking?
DPDK (Data Plane Development Kit) is a set of open-source libraries and drivers for fast packet processing that bypasses the Linux kernel networking stack entirely. By using techniques like poll-mode drivers, hugepage memory allocation, and zero-copy packet paths, DPDK enables applications to achieve line-rate packet processing at 100Gbps and beyond on commodity hardware. PacketFlow specializes in building custom DPDK applications — from initial prototyping to full production deployments.
What is VPP and how does PacketFlow use it?
VPP (Vector Packet Processor), part of the FD.io project hosted by the Linux Foundation, is a high-performance, extensible packet processing framework. Unlike traditional per-packet processing, VPP processes packets in vectors (batches), maximizing CPU cache efficiency. PacketFlow develops custom VPP plugins for routing, security, and network functions, and designs graph node pipelines and multi-worker scaling architectures for both containerized and bare-metal deployments.
Can PacketFlow help with IPsec and IKEv2 at 100Gbps scale?
Yes. PacketFlow has delivered VPP-based IPsec gateways handling thousands of simultaneous tunnels at 100Gbps line rate using hardware crypto offload. Our expertise covers tunnel and transport mode IPsec, IKEv2 key exchange protocols, Linux XFRM framework integration, and hybrid kernel/userspace encryption architectures. We design these solutions for carrier-grade telecom and enterprise security environments.
What industries does PacketFlow serve?
PacketFlow primarily serves three industries: telecom (carrier-grade infrastructure, mobile core, 5G user plane), cloud infrastructure (hyperscale networking, virtual network functions, container networking), and cybersecurity (network security appliances, DPI, encrypted traffic processing). Our solutions are deployed where 100Gbps+ line-rate performance is non-negotiable.
How does PacketFlow optimize network performance?
We apply a comprehensive optimization methodology: NUMA-aware architecture design ensures memory locality, cache-line alignment eliminates false sharing, CPU pinning prevents scheduler interference, hugepage allocation reduces TLB misses, and kernel bypass eliminates syscall overhead. Combined, these techniques achieve sub-microsecond latency and zero-packet-loss at sustained 100Gbps+ throughput.
Is PacketFlow available for remote development worldwide?
Yes. PacketFlow operates remote-first and serves clients worldwide. We work as an outsource development team, embedding with your engineers to build and optimize high-performance networking systems. Initial consultations are always free, and we typically respond within 24 hours.
What makes PacketFlow different from other networking consultancies?
PacketFlow is built by a team of hands-on practitioners, not managers. With 40+ years of combined experience and 24 delivered projects, we bring deep implementation-level expertise — not just architectural advice. We've personally built and deployed 100Gbps+ production systems across telecom, cloud, and security. Every engagement is led directly by a senior engineer.
Does PacketFlow work with SONiC and white-box switches?
Yes. PacketFlow has deployed production SONiC-based network packet brokers on white-box switching hardware from Edge-Core, Celestica, and Delta. Our expertise covers SAI ACL programming for hardware-accelerated filtering, ERSPAN mirroring, ASIC portability across Broadcom, Marvell, and Intel platforms, and Ansible-based automation for repeatable deployments.
Can PacketFlow integrate DPDK with SmartNICs and hardware accelerators?
Yes. PacketFlow has production experience with Napatech SmartNICs (NTPL programming for hardware-level filtering at 30-100Gbps), DPDK on ARM platforms (Cavium ThunderX cross-compilation), and switching ASIC HAL integration (Marvell Prestera). We leverage hardware timestamping, NIC-level offload, and the DPDK rte_flow API for hardware-matched packet classification.
Hardware We Work With
Deployed in production across NIC, accelerator, and switching platforms
Trusted By
Deployed in production by networking and telecom companies worldwide
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